Oiling-pump for steam-engines



(No Model.) 2 Sheets-Sheet 1.

. W. RESTON.

OILING PUMP FOR STEAM ENGJNBS. No. 271,238. Patented Ja11.30,l883.

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WITNESSES (No Model.) 2 sheets-sheet 2.

W.- HESTON.

OILING PUMP EUR STEAM ENGINES.

Patented Jan. 30. 1883.

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WITNEssEs ATTORNEYS UNITED STATES PATENT OFFICE.

WILLIAM HESTON, OF MOUNT UNION, OHIO.

OILING-PUM'P FOR STEAM-ENGINES.

SPECIFICATION ferming peri; ef Lettere Patent No. 271,238; dated January 3o, 1883.

Application filed June 2l, 1882.

' citizen of the United States, and residing in the town of Mount Union, in the county ot' Stark and State of Ohio, have invented a new and useful Oiling-Pnmp for Steam-Engines, of which the following is a specification.

My invention relates to improvements in automatic oiling-pumps for steam-engines,in

'which a piston in acylinderofapumpattached to the cylinder of a steam-engine is raised by the pressure ot' steam in the steamecylinder of the engine acting directly upon. the piston of the pump, and such piston in the pump is forced back to its seat by a spring operating downward, when the pressure ofthe steam in the steam-cylinder of the engine is released through the exhaust-port. x

In the drawings, Figure l is a vertical section ofthe pump, and Fig. 2 is a side View of the pump as attached to the steamecylinder and steam-pipe of' an engine.

Similar letters ret'er to similar drawings.

A is the oil-reservoir, provided with small vent a, from which oil ows into and fills the pump-cylinder O by means of pipe B, provided with check-valve D. The cylinder C of the pump incloses the piston E, which is otless diameter than the piston-head F, inclosed in cylinder C. The spring H rests upon the upper end of piston E and bears against plate K. The tension ot'-spri11g H may be regnlatedby raising or lowering plate K by means ofhandscrew I, so as to increase or decrease the lift of piston E in the pump. The piston .E is provided with packing G G to prevent the escape of oil from Cylinder C and ot' steam from cylinder C. Cylinder C' is firmly xed to the parts in both steam-cylinder of the engine by screw N, and is connected with such cylinder by the opening S, so that the pressure of the steam operates upon the face of the piston F in cylinder C.

The progress of steam through opening S may be regulated by globe-valve LM.

(No model.)

When steam is introduced through port W into the space S the force of the boiler-pressure of steam extends through opening S and raises piston F in 4 cylinder C', that' necessarily raises piston E in cylinder U, asthe two pistons are directly connected, which thereby displaces oil in cylinder C and t'orcesit through port B and check-valve O, through jet Q and pipe P T, through check-valve U, and into the steam-pipe ot' the engine V.. The oil is prevented from returning through pipe B to the reservoir A when `piston E is raised by check- 4Valve D. The oil thus pumped into pipe PT is prevented from returning to cylinder() when piston E recedes by check-valve O, and when piston E recedes oil is drawn into cylinder O from reservoir A by-suction, and supplies the place ofthe oil before driven through port 1i into pipe P T. The oil forced through pipe P T into steam-pipe V descends int-o the steamchest and steam-cylinder of the engine and l'ubricates the pistons. When piston P is driven back and 4the pressure of steam in S is released, and consequently the pressure upon piston F is withdrawn, the spring H operates to force piston E downward and brings piston F toits seat, as shown in [he drawings,and the result follows in cylinder Gas above described, and when steam-pressure is again applied to piston F piston E is again raised and the same results follow, as above desciibed.

R is aifventwhich permits ingress and egress of air to'and from cylinder O when piston F islowered and raised.

What I claim as'my invention, and desire to secure by Letters Patent, is

ThecombinationofreservoirA,pipeB,check Valve I), cylinder C, piston E, spring H, plate K, cylinder C', provided with veilt It, piston F, port B', checlevalve O, pipe P T, and checkvalve U, with the steam-cylinder of an engine, substantially as shown and described.

NVILLAM HESTON. Witnesses:

FRANCIS J. WING, JOHN T. MEAD. 

